Home / 55,438.83-83,191.05-20,403.09

Finding the Fourth Proportional to 55,438.83, 83,191.05 and 20,403.09

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Solution

The fourth proportional to 55,438.83, 83,191.05 and 20,403.09 is: 30,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,438.83 : 83,191.05 = 20,403.09 : x
  2. Step 2: Convert to fraction form
    55,438.83/83,191.05 = 20,403.09/x
  3. Step 3: Cross multiply
    55,438.83x = 83,191.05 × 20,403.09
  4. Step 4: Simplify right side
    55,438.83x = 1,697,354,480.34
  5. Step 5: Solve for x
    x = 1,697,354,480.34/55,438.83
  6. Step 6: Final answer
    x = 30,616.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.